CN108911714A - 一种二氧化钛-高含量氧化铝陶瓷的制备方法 - Google Patents
一种二氧化钛-高含量氧化铝陶瓷的制备方法 Download PDFInfo
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 239000010936 titanium Substances 0.000 title claims abstract description 12
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 26
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000006004 Quartz sand Substances 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
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- 239000001301 oxygen Substances 0.000 claims 1
- 238000012827 research and development Methods 0.000 abstract description 2
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- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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Abstract
本发明公开了二氧化钛‑高含量氧化铝陶瓷的制备方法，该二氧化钛‑高含量氧化铝陶瓷由铝质岩、高岭土、石英砂和二氧化钛按配比制成，制备方法包括如下步骤：将铝质岩磨至200目以下，再与高岭土、石英砂及二氧化钛混匀加入水搅拌成浆体注入模具，放置于水泥砂浆振动台上振荡后置于背阴处自然风干成型脱模，放入鼓风干燥烘箱内干燥24h取出进行烧结实验；将成型瓷胚置于高温炉中烧制成型，设定4小时10分钟升温至1300℃，并保温1小时。本发明制备的二氧化钛‑高含量氧化铝陶瓷性能优越，在铝质岩资源综合利用及提高其制品的附加值基础上，促进铝质岩制备氧化铝陶瓷研究发展。
Description
技术领域
本发明涉及一种二氧化钛-高含量氧化铝陶瓷的制备方法，具体涉及一种利用低品位铝质岩、高岭土、石英砂及二氧化钛来制备二氧化钛-高含量氧化铝陶瓷的方法。
技术背景
铝质岩资源利用率较低，该资源目前只少量利用于低端耐火材料等，未能得到充分的综合利用。人们只高度利用高品位铝土矿，摒弃低品位铝土岩(铝质岩)，造成该类型含Al2O3较高的资源的极度浪费；同时被废弃的铝质岩大量堆积对环境造成极大的负面影响。因此，充分利用铝质岩，提高其应用价值就显得尤为重要。
发明内容
本发明的目的是提供一种二氧化钛-高含量氧化铝陶瓷的制备方法，利用铝质岩、高岭土、石英砂和二氧化钛混合制备二氧化钛-高含量氧化铝陶瓷，使得铝质岩资源化充分利用，这不仅能提高经济效益还能保护生态环境。生产的二氧化钛-高含量氧化铝陶瓷性能优越。
本发明的技术方案如下：
一种二氧化钛-高含量氧化铝陶瓷的制备方法，该二氧化钛-高含量氧化铝陶瓷由铝质岩、高岭土、石英砂和二氧化钛按配比制成，制备方法包括如下步骤：将铝质岩磨至200目以下，再与高岭土、石英砂及二氧化钛混匀加入水搅拌成浆体注入模具，放置于水泥砂浆振动台上振荡后置于背阴处自然风干成型脱模，放入鼓风干燥烘箱内干燥24h取出进行烧结实验；将成型瓷胚置于高温炉中烧制成型，设定4小时10分钟升温至1300℃，并保温1小时。
其中，按质量计算，配比为铝质岩:高岭土:石英砂:二氧化钛＝50～55:13～16:18～22:8～12。
进一步的，浆体注入模具后放置在水泥砂浆振动台上振荡的时间为8～10分钟。
进一步的，铝质岩中的氧化铝质量占比为35～45％，高岭土中的氧化铝质量占比为35～45％。
进一步的，所述鼓风干燥烘箱内干燥的设定温度为60℃～80℃。
本发明的二氧化钛-高含量氧化铝陶瓷制备方法产品形成过程：在高温条件下反应主要生成莫来石和刚玉。二氧化钛成颗粒状被包裹于莫来石中，构成陶瓷的支撑结构提高陶瓷的力学性能。本发明制备得到的二氧化钛-高含量氧化铝陶瓷具有良好的化学稳定性、耐磨性、耐热性和优异的力学性能，被广泛地应用于机械加工、航空航天、电工电子行业等许多方面，是一种有着广泛应用的新型工具、功能结构陶瓷材料，具有极大的开发和利用价值。
本发明制备的二氧化钛-高含量氧化铝陶瓷性能优越，在铝质岩资源综合利用及提高其制品的附加值基础上，促进铝质岩制备氧化铝陶瓷研究发展。
具体实施方式
下面结合实施例对本发明作进一步的详细说明。
实施例1：
按质量计算，配比为铝质岩:高岭土:石英砂:二氧化钛＝53.77:15.49:20.74:10。将铝质岩磨至200目以下，再与高岭土、石英砂及二氧化钛混匀加入适量水搅拌成浆体，将浆体注入模具置于水泥砂浆振动台上振荡9分钟后置于背阴处自然风干成型脱模，设定干燥烘箱温度为70℃干燥24h取出进行烧结实验。将干燥后的成型瓷胚置于高温炉中烧制成型，设4小时10分钟升温至1300℃，并保温1小时。
对产品进行物理性能测试，其中抗压强度为70.26MPa、抗折强度17.16MPa、吸水率为12.26％、耐酸性为7.46g/m2﹒h。这些指标表明产品性能优越，可待加以利用，为提高铝质岩经济效益提供强有力技术支撑。
实施例2：
按质量计算，配比为铝质岩:高岭土:石英砂:二氧化钛＝50:13:18:8。将铝质岩磨至200目以下，再与高岭土、石英砂及二氧化钛混匀加入适量水搅拌成浆体，将浆体注入模具置于水泥砂浆振动台上振荡8分钟后置于背阴处自然风干成型脱模，设定干燥烘箱温度为60℃干燥24h取出进行烧结实验。将干燥后的成型瓷胚置于高温炉中烧制成型，设4小时10分钟升温至1300℃，并保温1小时。
对产品进行物理性能测试，其中抗压强度为64.23MPa、抗折强度15.32MPa、吸水率为10.25％、耐酸性为6.68g/m2﹒h。这些指标表明产品性能优越，可待加以利用，为提高铝质岩经济效益提供强有力技术支撑。
实施例3：
按质量计算，配比为铝质岩:高岭土:石英砂:二氧化钛＝55:18:22:12。将铝质岩磨至200目以下，再与高岭土、石英砂及二氧化钛混匀加入适量水搅拌成浆体，将浆体注入模具置于水泥砂浆振动台上振荡10分钟后置于背阴处自然风干成型脱模，设定干燥烘箱温度为80℃干燥24h取出进行烧结实验。将干燥后的成型瓷胚置于高温炉中烧制成型，设4小时10分钟升温至1300℃，并保温1小时。
对产品进行物理性能测试，其中抗压强度为68.76MPa、抗折强度16.59MPa、吸水率为12.13％、耐酸性为7.32g/m2﹒h。这些指标表明产品性能优越，可待加以利用，为提高铝质岩经济效益提供强有力技术支撑。
以上所述，仅是本发明较佳示例而已，并非对作任何数据和形式上的限制，凡是依据本发明的技术实质对以上施例所作的任何数据修改、等同变化，均仍属于本发明技术实质范围内。
Claims (5)
1.一种二氧化钛-高含量氧化铝陶瓷的制备方法，其特征在于：该二氧化钛-高含量氧化铝陶瓷由铝质岩、高岭土、石英砂和二氧化钛按配比制成，制备方法包括如下步骤：将铝质岩磨至200目以下，再与高岭土、石英砂及二氧化钛混匀加入水搅拌成浆体注入模具，放置于水泥砂浆振动台上振荡后置于背阴处自然风干成型脱模，放入鼓风干燥烘箱内干燥24h取出进行烧结实验；将成型瓷胚置于高温炉中烧制成型，设定4小时10分钟升温至1300℃，并保温1小时。
2.根据权利要求1所述的二氧化钛-高含量氧化铝陶瓷的制备方法，其特征在于：按质量计算，配比为铝质岩:高岭土:石英砂:二氧化钛＝50～55:13～16:18～22:8～12。
3.根据权利要求1所述的二氧化钛-高含量氧化铝陶瓷的制备方法，其特征在于：浆体注入模具后放置在水泥砂浆振动台上振荡的时间为8～10分钟。
4.根据权利要求1所述的二氧化钛-高含量氧化铝陶瓷的制备方法，其特征在于：铝质岩中的氧化铝质量占比为35～45％，高岭土中的氧化铝质量占比为35～45％。
5.根据权利要求1所述的二氧化钛-高含量氧化铝陶瓷的制备方法，其特征在于：所述鼓风干燥烘箱内干燥的设定温度为60℃～80℃。
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